The Quran

220

فِي الدُّنيا وَالآخِرَةِ ۗ وَيَسأَلونَكَ عَنِ اليَتامىٰ ۖ قُل إِصلاحٌ لَهُم خَيرٌ ۖ وَإِن تُخالِطوهُم فَإِخوانُكُم ۚ وَاللَّهُ يَعلَمُ المُفسِدَ مِنَ المُصلِحِ ۚ وَلَو شاءَ اللَّهُ لَأَعنَتَكُم ۚ إِنَّ اللَّهَ عَزيزٌ حَكيمٌ

Muhammad Asad

on this world and on the life to come. And they will ask thee about [how to deal with] orphans. Say: "To improve their condition is best." And if you share their life, [remember that] they are your brethren:¹ for God distinguishes between him who spoils things and him who improves. And had God so willed, He would indeed have imposed on you hardships which you would not have been able to bear:² [but,] behold, God is almighty, wise!

The implication is that if one shares the life of an orphan in his charge, one is permitted to benefit by such an association - for instance, through a business partnership - provided this does not damage the orphan's interests in any way.
I.e., "by putting you under an obligation to care for the orphans, and at the same time prohibiting you from sharing their life" (see preceding note).